CyberHunter
Local dataset, no network
// Other services

Port 3595: ShareApp

Port 3595 is assigned by IANA to shareapp (ShareApp).

3595

How shareapp works

Other services
client:3595shareappresponse client:3595shareappresponse

The client sends a request to port 3595 and the shareapp service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 3595 dangerous?

We have no specific security note for port 3595. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 3595

ServicePortTransportDescriptionReferenceUpdated
shareapp 3595 TCP, UDP ShareApp - 2002-09

// source: IANA service name and port number registry

03 Check it

Which program uses port 3595, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3595'      # process listening on 3595
sudo lsof -nP -i :3595

macOS

sudo lsof -nP -i :3595

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3595 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3595
netstat -ano | findstr :3595

From another machine

nmap -p 3595 -sV <host>
sudo nmap -sU -p 3595 <host>
nc -zv <host> 3595

Block it in the firewall

sudo ufw deny 3595/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3595" -Direction Inbound -LocalPort 3595 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3595 used for?

Port 3595 is assigned by IANA to shareapp (ShareApp).

Is port 3595 TCP or UDP?

Port 3595 is registered for TCP and UDP.

Is it safe to open port 3595?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 3595 is open?

On Linux run "ss -ltnup 'sport = :3595'", on macOS "lsof -nP -i :3595", and on Windows "netstat -ano | findstr :3595" to see the local process. From another machine, "nmap -p 3595 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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